/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
 * licenses this file to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.listening.framework.security.shirofreemarker;

import org.apache.shiro.subject.Subject;

/**
 * Displays body content if the current user has any of the roles specified.
 * 
 * <p>
 * Equivalent to {@link org.apache.shiro.web.tags.HasAnyRolesTag}
 * </p>
 * 
 * @since 0.2
 */
public class HasAnyRolesTag extends RoleTag {
	// Delimeter that separates role names in tag attribute
	private static final String ROLE_NAMES_DELIMETER = ",";

	protected boolean showTagBody(String roleNames) {
		boolean hasAnyRole = false;
		Subject subject = getSubject();

		if (subject != null) {
			// Iterate through roles and check to see if the user has one of the
			// roles
			for (String role : roleNames.split(ROLE_NAMES_DELIMETER)) {
				if (subject.hasRole(role.trim())) {
					hasAnyRole = true;
					break;
				}
			}
		}

		return hasAnyRole;
	}
}